but it's not imperfect technology. which actually maybe why it was better here to have all of these publicly submitted pictures. you had pictures from multiple angles, from multiple users, multiple lighting situations that did make it easier to identify these suspects. also, one thing that i wanted to point out is that not only did you have the pictures here but there were witness ids. muse needia outlets that jeff who was grievesly injured in this tragedy actually had identified, had the presence of mind to be able to identify one of the suspects to give a good strong description of a suspect to the f.b.i. not to look at a lineup of pictures but to give a strong description of the suspect and what had happened at the scene to law enforcement agents. and i think that sort of traditional policing, those sorts of methods were very effective here. >> next up is naturally calling from houston, texas. go ahead. caller: good morning. thanks for accepting my call. i have a question on the expectation of privacy. work in publi